> Once we reach the age of procreation, evolution is pretty much done with us. It seems to me that the same argument could be used against the whole group of s

> Once we reach the age of procreation, evolution is pretty much done with us. It seems to me that the same argument could be used against the whole group of social animals. It doesn't work. Older people organize the group, they protect the young, ... One needs to look at evolution like it's at play for groups of people as much as it is at play for individuals themselves. Besides there are many things that are tough to explain in evolution. Riddle me this. Humans are 7 billion, and have a generational length of 20 years, more or less. Bacteria are 9999999999 trillion (at least) and have a generational length that is somewhere between minutes and hours. How do humans stay alive with that sort of competition ? Evolution becomes more efficient with shorter generational lengths and larger numbers of individuals. Sorry to break it to you, but bacteria have got us beat, by a LOT (and the gain should compound over time). Why haven't all larger plants and animals died out from infection long before humans or even mammals existed ?